British OpenJuly 17, 2015

The Jordan Spieth Slam-o-Meter: First round at the Open Championship

ST. ANDREWS, Scotland -- Throughout this week, we'll update the status of Jordan Spieth becoming the first golfer to ever complete the calendar Grand Slam.

The Good: Does this guy ever have a bad day? Spieth didn't waste any time vaulting to the top of a leader board at a major championship when he shot a front-nine 31 on Thursday. He stalled on the back nine -- most of the field did playing into the wind -- but his opening 67 left him two shots behind playing partner Dustin Johnson. He's now a staggering 28 under par in majors this year, birdieing nearly one third of his holes in nine rounds. After all the talk about Spieth's inexperience on the Old Course, he looked just fine. If Spieth is only going to get more comfortable here, the rest of the field could be in trouble.

Related: The winners and losers from Day 1 at St. Andrews

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The Bad: Spieth is supposed to get the worst of the weather Friday afternoon and there's a chance he won't be able to complete his second round before Saturday. Of course, that could either hurt him or help him depending on Saturday morning's conditions. Also working against him, Dustin Johnson looks like he's carried over the brilliant ball-striking he displayed at Chambers Bay during his latest close call in a major. Spieth acknowledged after Thursday's round that "keeps driving it the way he is, then I'm going to have to play my best golf to have a chance." Keep in mind, Spieth beat Johnson at the U.S. Open, but he didn't have to watch DJ blast it by him all day on Sunday. Maybe Dustin is in his head!

Spieth Slam-o-Meter Rating:__ 5.

Eh, probably not. This is Jordan Spieth we're talking about. Let's just say if he and Dustin Johnson played a match in mental toughness, it wouldn't make it to the 18th hole. We're bumping Spieth back up to a 5 because he's right in the mix after Day 1. And like we saw at Chambers Bay, just hanging around the leader board is often the recipe for major success.

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